JP3207187U - Bi-directional open / close curtain with pulley structure - Google Patents

Abstract

Provided is a bidirectional open / close curtain that can adjust a light-transmitting (or shielding) part and has a pulley structure convenient for assembly and inspection / repair. A first transverse beam 10, a second transverse beam 12, a blind body 14, a first elevating mechanism, and a second elevating mechanism are provided. The first elevating mechanism is installed on the first cross beam 10 and includes a first pulley 26 and first tension strings 30 and 32. The first pulley 26 is reciprocated to the first transverse beam 10 as the first transverse beam 10 moves away from or approaches the fixed object. One end of each of the first pull strings 30 and 32 passes through the first pulley 26, the other end passes through the first transverse beam 10, and is fixed to a fixed object. The second lifting mechanism is installed on the second transverse beam 12 and includes a second pulley 42 and second tension strings 46, 48. The second pulley 42 is reciprocated to the second transverse beam 12 as the second transverse beam 12 moves away from or approaches the first transverse beam 10. One end of each of the second tension strings 46 and 48 passes through the second pulley 42, the other end passes through the second transverse beam 12, and is fixed to a fixed object. [Selection] Figure 2

Description

  The present invention relates to a curtain structure, and more particularly, to a bidirectional open / close curtain having a pulley structure.

  A conventional bi-directional curtain (top down, bottom up, TDBU) includes an upper rail, an intermediate rail, and a lower rail, and a blind body is installed between the intermediate rail and the lower rail. The conventional two-way open / close curtain controls the middle rail to approach the upper rail or the lower rail (ie, moves in both directions) by two pull strings, and the lower rail is intermediate by two pull strings. The light transmission (or shielding) area of the two-way opening / closing curtain can be arbitrarily changed by controlling so as to be relatively close to or away from the rail.

  However, the structure of the conventional two-way open / close curtain can increase the light-shielding flexibility, but two sets of string winding units for winding the drawstring are attached in the upper rail. When the string take-up unit is installed inside the upper rail, the space is insufficient or it interferes with each other, so that the inconvenience of assembly is increased and the inspection and repair are also inconvenient.

  The present invention has been made in view of the above-described problems, and its purpose is to be able to adjust a light transmission (or shielding) part and to have a pulley structure that is convenient for assembly, inspection and repair. To provide curtains.

In order to achieve the above-described object, the bidirectional open / close curtain having a pulley structure provided by the present invention is attached to a fixed object. The bidirectional open / close curtain includes a first transverse beam, a second transverse beam, and a blind body, of which the first transverse beam is located below the fixed object. The second transverse beam is located below the first transverse beam. The blind body has one end connected to the first transverse beam and the other end connected to the second transverse beam.
The first elevating mechanism is installed on the first transverse beam and includes a first pulley and a first tension string. The first pulley is reciprocated to the first transverse beam as the first transverse beam moves away from or approaches the fixed object. One end of the first pull string passes through the first pulley, the other end passes through the first transverse beam, and is fixed to a fixed object. The second lifting mechanism is installed on the second transverse beam and includes a second pulley and a second pull string. The second pulley is reciprocated to the second transverse beam as the second transverse beam is spaced or approached relative to the first transverse beam. One end of the second tension string passes through the second pulley, the other end passes through the second transverse beam, and is fixed to a fixed object.

  The first elevating mechanism includes a first winding wheel, a first prestress device, and a first connecting string. The 1st winding wheel is installed in the 1st cross beam so that forward / reverse rotation is possible. The first prestressing device moves the first winding wheel so that the first winding wheel rotates. Both ends of the first connecting string are fixed to the first winding wheel and the first pulley, respectively, and the first connecting string is wound around the first winding wheel as the first winding wheel rotates. The first connecting string is released from the first winding wheel as the first winding wheel rotates in the reverse direction. When the first transverse beam moves in a direction away from the fixed object, the first pulling string reversely rotates the first winding wheel by pulling the first pulley.

  One end of the first winding wheel is connected to the first drive gear. The first prestressing device includes two first winding drums and a first spiral spring. Of these, one end of the first winding drum is connected to the first driven gear, and the first driven gear meshes with the first drive gear. Both ends of the first spiral spring are fixed to two first winding drums, and the first spiral spring is attached to one of the first winding drums as the rotation direction of the two first winding drums is switched. It will be wound up.

  The first winding wheel has a conical shape and is wide at the top and narrow at the bottom, and is connected to the first transverse beam so as to be rotatable by a shaft.

  The first elevating mechanism includes a first steering wheel and a first branch shaft. The first steering wheel is fixed to the first transverse beam and is in contact with the first tension string. The first branch shaft is installed on the first pulley. The first pull string passes through the first steering wheel and the first branch shaft.

  The second lifting mechanism includes a second winding wheel, a second prestress device, and a second connecting string. The 2nd winding wheel is installed in the 2nd cross beam so that forward / reverse rotation is possible. The second prestressing device moves the second winding wheel so that the second winding wheel rotates. Both ends of the second connecting string are fixed to the second winding wheel and the second pulley, respectively, and the second connecting string is wound around the second winding wheel as the second winding wheel rotates. The second connecting string is released by the second winding wheel as the second winding wheel rotates in the reverse direction. When the second transverse beam moves in a direction away from the first transverse beam, the second pulling string reversely rotates the second winding wheel by pulling the second pulley.

  One end of the second winding wheel is connected to the second drive gear. The second prestressing device includes two second winding drums and a second spiral spring. One end of the second winding drum is connected to the second driven gear, and the second driven gear meshes with the second drive gear. Both ends of the second spiral spring are fixed to two second winding drums, and the second spiral spring is attached to one of the second winding drums as the rotation direction of the two second winding drums is switched. It will be wound up.

  The second winding wheel has a conical shape and is wide at the top and narrow at the bottom, and is connected to the second cross beam so as to be rotatable by a shaft.

  The second lifting mechanism includes a second steering wheel and a second branch shaft. The second steering wheel is fixed to the second transverse beam and abuts on the second pulling string. The second branch shaft is installed on the second pulley. The second pull string passes through the second steering wheel and the second branch shaft.

  The fixed object is an upper cross beam above the first cross beam, and the other blind body has one end connected to the upper cross beam and the other end connected to the first cross beam.

  The second pulling string coming out of the second transverse beam first penetrates the first transverse beam before it is fixed to the fixed object, and comes out of the first transverse beam after contacting or winding on the ring body in the first transverse beam. It extends with the drawstring and is fixed to the fixed object.

  As an effect of the present invention, the first elevating mechanism and the second elevating mechanism are attached to the first transverse beam and the second transverse beam that can be controlled to be raised and lowered, respectively, so that assembly or inspection repair becomes more convenient.

It is a perspective view which shows the bidirectional | two-way opening-and-closing curtain which has a pulley structure in the Example of this invention. It is a front view of FIG. It is a perspective view which shows the 1st raising / lowering mechanism of the bidirectional | two-way opening-and-closing curtain which has the pulley structure of FIG. It is a perspective view which shows the 1st raising / lowering mechanism of the bidirectional | two-way opening-and-closing curtain which has the pulley structure of FIG. It is a top view of the raising / lowering mechanism of FIG. 3, and shows the state which the position of a 1st pulley does not move. Similar to FIG. 5, showing the first pulley moving to the left. It is a front view which shows the state which a 1st horizontal beam and a 2nd horizontal beam are located in a low level. It is a front view which shows the state which a 1st cross beam approaches an upper cross beam, and a 2nd cross beam is located in a low level.

  In order to describe the present invention in detail, examples will be given and described with reference to the drawings. FIG. 1 shows a bidirectional open / close curtain 100 having a pulley structure according to an embodiment of the present invention. The bidirectional open / close curtain 100 having a pulley structure is attached to a fixed object and used to shield an opening of a building (for example, a window opening). The above-mentioned fixed object refers to a fixed cross beam, a window frame, or another structure having a structure that performs a strong fixing effect. The fixed object of the present embodiment is the upper cross beam 101 at the upper edge of the opening of the building.

  The bidirectional open / close curtain 100 includes a first transverse beam 10, a second transverse beam 12, a blind body 14, a first elevating mechanism, and a second elevating mechanism. The first transverse beam 10 is located below the upper transverse beam 101. The second transverse beam 12 is located below the first transverse beam 10. The blind body 14 has one end connected to the first horizontal beam 10 and the other end connected to the second horizontal beam 12. The blind body 14 has a good light shielding effect, and there are various forms thereof, and is not limited to the honeycomb blind shown in this embodiment. The first elevating mechanism is installed on the first transverse beam 10 and is used to control the first transverse beam 10 so as to be separated or approached relative to the upper transverse beam 101. The second elevating mechanism is installed on the second transverse beam 12 and is used to control the second transverse beam 12 so as to be separated from or approach the first transverse beam 10. Since the structures of the first elevating mechanism and the second elevating mechanism are the same, in the following, the second elevating mechanism will be supplementarily described after mainly describing the first elevating mechanism.

  As shown in FIGS. 2 to 4, the first lifting mechanism includes a first winding wheel 16, a first prestressing device, a first steering wheel 24, a first pulley 26, a first connecting string 28, and two first The tension string 30 (32) is included. Among these, the first winding wheel 16 and the first prestressing device are provided at one end in the long side direction of the first transverse beam 10. The first steering wheel 24 is provided at the other end of the first transverse beam 10 in the long side direction. The first pulley 26 is located between the first winding wheel 16 and the first steering wheel 24 and is provided so as to be able to reciprocate.

  The first winding wheel 16 has a conical shape, has a wide upper portion and a narrow lower portion, and is connected to the first transverse beam 10 so as to be rotatable by a shaft. The first winding wheel 16 is rotated in the forward direction (clockwise) or the reverse direction (counterclockwise) by operation. A wire groove that spirally winds is formed on the surface of the wheel, and the first drive gear 16a is connected to the top end and / or the bottom end. In the present embodiment, the conical contour of the first winding wheel 16 has a conical shape that becomes gradually narrower from the top to the bottom, and is further extended downward from the narrowest portion into a straight column shape, and is viewed obliquely. The outline of is similar to a funnel shape. The conical contour of the first winding wheel 16 may be a conical shape that is inclined gradually and gradually narrows. Or the cone-shaped structure which exhibits the curved surface shape which the body part of a cone is dented toward the inner side may be sufficient.

  The first prestressing device is used to move the first winding wheel so as to rotate the first winding wheel 16 forward. The first prestressing device includes two winding drums 18 (20) and a first spiral spring 22. The two winding drums 18 (20) can be arranged side by side so as to be rotatable. Among them, the first driven gear 18 a is connected to the top end portion and / or the bottom end portion of the first winding drum 18. The first driven gear 18a meshes with the first drive gear 16a. As shown in FIG. 5, both ends of the first spiral spring 22 are fixed to the two first winding drums 18 (20), respectively, and the first spiral spring 22 is composed of the two first winding drums 18 (20). ), The first winding drum 18 or the first winding drum 20 is wound. As shown in FIGS. 2 and 5, the first spiral spring 22 is mostly wound around the first winding drum 20 in a normal state. At this time, the pulling force generated by the first spiral spring 22 is moved by the first winding drum 18 so that the first winding wheel 16 maintains the normal rotation state. The normal state described above indicates a closed state in which the first transverse beam 10 approaches the upper transverse beam 101.

  The first steering wheel 24 is rotatably attached to the fixed seat 25. The first steering wheel 24 forms two divided grooves. The first pulley 26 includes a vehicle body 26a, a first branch shaft 26b, and a plurality of guide wheels 26c. The first branch shaft 26b is connected to the lower side of the vehicle body 26a and forms two divided grooves. The plurality of guide wheels 26c are rotatably connected to both sides of the vehicle body 26a by shafts. The plurality of guide wheels 26 c come into contact with the inner wall of the first transverse beam 10, so that the first pulley 26 gently moves in the front-rear direction relative to the first winding wheel 16.

  One end of the first connecting string 28 is fixed to the vehicle body 26 a of the first pulley 26, and the other end is fixed to the first winding wheel 16. The first connecting string 28 is wound around the first winding wheel 16 as the first winding wheel 16 rotates forward. In addition, the distance between the first winding wheel 16 and the first pulley 26 is reduced. The first connecting string 28 is released from the first winding wheel 16 as the first winding wheel 16 rotates in the reverse direction. In addition, the distance between the first winding wheel 16 and the first pulley 26 is increased (see FIG. 6).

  One end of the two tension strings 30 (32) is fixed to the vehicle body 26 a of the first pulley 26, and the other end is fixed to the upper horizontal beam 101 after passing through a predetermined hole of the first horizontal beam 10. The two tension strings 30 (32) respectively pass through the first branch shaft 26b and the first steering wheel 24 of the first pulley 26, and straddle the dividing grooves of the first steering wheel 24 and the first branch shaft 26b, respectively. Can be prevented from being entangled with each other. The purpose of installing the first steering wheel 24 and the first branch shaft 26b described above is to change the multiple of the travel stroke between the first pulley 26 and the first cross beam 10 by setting the number of times the first pull string is changed. There is in being able to. For example, when the first tension string is sequentially fixed to the vehicle body 26a via the first steering wheel 24, the first branch shaft 26b, and the first steering wheel 24, the first tension string is converted twice. At this time, when the first pulley 26 is moved by a single stroke, the first horizontal beam 10 is moved by a triple stroke. More specifically, when the first pull string is further reversed and fixed to the fixed seat 25, the moving stroke between the first pulley 26 and the first transverse beam 10 is an even multiple.

2 and 5 show that the first transverse beam 10 approaches the upper transverse beam 101. At this time, the first prestressing device is driven so that the first winding wheel 16 is maintained in the normal rotation state, and at the same time, a part of the first connecting strings 28 is bottomed from the top end of the first winding wheel 16. By sequentially winding in the line groove in the direction of the end portion, it is ensured that the first transverse beam 10 is reliably positioned by providing the first pulley 26 with a gradually increasing tensile force.

  6 and 7 show that the first transverse beam 10 is pulled down and separated from the upper transverse beam 101, whereby the upper part of the bidirectional open / close curtain 100 is translucent and the lower part remains light-shielded. Let In the process in which the first transverse beam 10 moves downward relative to the upper transverse beam 101, the first pulley 26 is pulled by the two first tension strings 30 (32) and separated from the first winding wheel 16. Moved to. The first pulley 26 pulls out the first connecting string 28 that is wound around the first winding wheel 16. In addition, by driving the first winding wheel 16 to rotate in the reverse direction (counterclockwise), the rotation directions of the two first winding drums 18 (20) are switched, and most of the first spiral spring 22 is The first winding drum 18 is wound up. When the first transverse beam 10 is operated to move upward again and is automatically rewound onto the first winding drum 20, the first spiral spring 22 is pulled by the automatic rewinding. The first transverse beam 10 is easily brought close to the upper transverse beam 101 by the force.

  Thus, the first pulley 26 reciprocates in the first transverse beam 10 as the first transverse beam 10 is separated or approached relative to the upper transverse beam 101. The first prestress device including the first spiral spring 22, the first connecting string 28 changes the position of the cone-shaped body part that winds around the first winding wheel 16, and finally outputs to the first pulley 26. By changing the force, the operation of the first cross beam 10 is further labor-saving, and the first cross beam 10 can be reliably positioned and prevented from sinking.

  The second elevating mechanism is used to control the second transverse beam 12 so as to be separated or approached relative to the first transverse beam 10. The second lifting mechanism is similar to the second winding wheel 34 similar to the first winding wheel 16 described above, the second prestressing device similar to the first prestressing device described above, and the first steering wheel 24 described above. A second steering wheel (not shown), a second pulley 42 similar to the first pulley 26 described above, a second connection string 44 similar to the first connection string 28 described above, and two second tension strings 46 (48). )including. Among them, the second prestressing device includes two second winding drums 36 (38) similar to the first winding drum 18 (20) described above, and a second spiral spring 40 similar to the first spiral spring 22 described above. Further included.

  In the second lifting mechanism described above, the first pulling string 46 (48) has a method in which the first pulling string 46 (48) passes through the blind body 14 first, then passes through the first cross beam 10 and is fixed to the upper cross beam 101. Except for being somewhat different from the string 30 (32), the other members and the connection relationship between the members are all the same as those of the first elevating mechanism, and the operation principle is also the same. Therefore, detailed description of the second lifting mechanism is omitted. However, it should be explained that when the second pulling string 46 (48) penetrates the first transverse beam 10 before being fixed to the upper transverse beam 101, the part of the string is abutted or wound around the ring body. The ring body is the first steering wheel 24 in this embodiment. The second tension string 46 (48) in the present embodiment is extended together with the first tension string 30 (32) extended from the first transverse beam 10 after the string portion is wound around the first steering wheel 24. It is fixed to the cross beam 101. The above penetration and winding method prevents the first pulley 26 from reciprocating when the second pull string 46 (48) passes directly through the first cross beam 10 and is fixed to the upper cross beam 101. A frictional resistance force that prevents and positions the second transverse beam 12 is provided. In addition, in the first cross beam 10, a part of the first pulling string 30 (32) is prevented from causing inconvenience in the ascending / descending operation due to the entanglement.

  FIG. 7 shows that both the first transverse beam 10 and the second transverse beam 12 move downward. FIG. 8 shows that the second transverse beam 12 remains low, but the first transverse beam 10 moves upward and approaches the upper transverse beam 101. Regardless of the position of the first cross beam 10, the operation is saved by being controlled by the second lifting mechanism in the process of pulling and moving the second cross beam 12 downward. Further, when the second transverse beam 12 is pushed upward and approaches the first transverse beam 10, the tensile force provided by the second prestressing device is stacked in balance with the weight of the blind body 14 in the second transverse beam 12. Thus, the second transverse beam 12 can be reliably positioned and prevented from sinking.

  The bidirectional open / close curtain 100 has an effect of adjusting an upper or lower light-transmitting (or shielding) area, and the first elevating mechanism and the second elevating mechanism can be controlled to move up and down, respectively. Since it is attached, it is convenient for assembly or inspection and repair. The upper horizontal beam 101, which is a fixed object of this embodiment, is sold as a part of the curtain. However, in practice, the upper horizontal beam 101 can be omitted and the bidirectional open / close curtain 100 can be directly attached to the window frame. it can. That is, the window frame is a fixed object. At this time, one end of the first pull string 30 (32) and the second pull string 46 (48) that are originally connected to the upper cross beam 101 may be directly connected to the upper edge of the window frame. In this way, the cost can be reduced.

  Further, another blind body may be appropriately installed between the fixed object (the upper horizontal beam 101 or the window frame) and the first horizontal beam 10 as necessary. The other blind body has one end connected to the fixed object and the other end connected to the first cross beam 10. The material or structure of the other blind body is preferably different from that of the blind body 14 described above. Thereby, the upper or lower part of the bidirectional open / close curtain 100 has a different degree of light transmission (or shielding) effect.

  The above-described embodiments are merely preferred embodiments of the present invention. In principle, all equivalent changes applying the description of the present invention and the scope of the utility model registration request are within the scope of the utility model registration request of the present invention. Belonging to.

DESCRIPTION OF SYMBOLS 100 Bidirectional open / close curtain 101 Upper cross beam 10 First cross beam 12 Second cross beam 14 Blind body 16 First winding wheel 16a First drive gear 18 First winding drum 18a First driven gear 20 First winding drum 22 First One spiral spring 24 First steering wheel 25 Fixed seat 26 First pulley 26a Vehicle body 26b First branch shaft 26c Guide wheel 28 First connection string 30 First tension string 32 First tension string 34 Second winding wheel 36 Second volume Take-up drum 38 Second take-up drum 40 Second spiral spring 42 Second pulley 44 Second connecting string 46 Second tension string 48 Second tension string

Claims (11)

Attached to a fixed object,
A first transverse beam, a second transverse beam, and a blind body;
The first transverse beam is located below the fixed object, the second transverse beam is located below the first transverse beam, and the blind body has one end connected to the first transverse beam and the other end connected to the first transverse beam. It is connected to two transverse beams,
As its features, including a first lifting mechanism and a second lifting mechanism,
The first elevating mechanism is installed on the first transverse beam and includes a first pulley and a first pull string, wherein the first pulley is separated or approached relative to the fixed object. The first transverse string is reciprocated as the first pulling string passes through the first pulley, and the other end penetrates the first transverse beam and is fixed to the fixed object. And
The second elevating mechanism is installed on the second transverse beam and includes a second pulley and a second pull string, wherein the second pulley is separated from the first transverse beam by the second transverse beam. As it approaches, the second transverse beam is reciprocated, and the second tension string has one end passing through the second pulley, the other end passing through the second transverse beam, and being fixed to the fixed object. A bidirectional open / close curtain having a pulley structure.   The first elevating mechanism includes a first winding wheel, a first prestress device, and a first connecting string, and the first winding wheel is installed on the first transverse beam so as to be able to rotate forward and backward, The first prestressing device rotates the first winding wheel in conjunction with each other, and both ends of the first connection string are fixedly connected to the first winding wheel and the first pulley, respectively, and the first connection The string is wound on the first winding wheel as the first winding wheel rotates, and the first connecting string is wound on the first winding wheel as the first winding wheel rotates reversely. When the first transverse beam is released from the wheel and moves in a direction away from the fixed object, the first pulling string pulls and moves the first pulley, so that the first winding wheel is reversely rotated. Bidirectional retractable curtain having a pulley structure according to claim 1, characterized in that. The first winding wheel has one end connected to the first drive gear,
The first prestressing device includes two first winding drums and a first spiral spring, of which the first winding drum has one end connected to the first driven gear, and the first driven gear is , Meshed with the first drive gear,
Both ends of the first spiral spring are fixed to two first winding drums, respectively, and the first spiral spring is one of the first windings as the rotational direction of the two first winding drums is switched. The bidirectional open / close curtain having a pulley structure according to claim 2, wherein the curtain is wound around a take-up drum.   The first winding wheel has a conical shape and has a wide upper part and a narrow lower part, and is vertically connected to the first transverse beam and rotatably connected to a shaft. Bi-directional opening and closing curtain with a pulley structure. The first lifting mechanism includes a first steering wheel and a first branch shaft,
The first steering wheel is fixed to the first transverse beam, and is in contact with the first pull string,
The first branch shaft is installed on the first pulley,
The bidirectional opening / closing curtain having a pulley structure according to claim 1, wherein the first pull string passes through the first steering wheel and the first branch shaft. The second lifting mechanism includes a second winding wheel, a second prestressing device, and a second connecting string,
The second winding wheel is installed on the second transverse beam so as to be able to rotate forward and backward,
The second prestressing device rotates the second winding wheel in conjunction with it,
Both ends of the second connecting string are fixed to the second winding wheel and the second pulley, respectively, and the second winding string is rotated as the second winding wheel rotates. Is wound on
The second connecting string is released from the second winding wheel as the second winding wheel rotates in reverse.
When the second transverse beam is moved in a direction away from the first transverse beam, the second take-up cord is reversely rotated by pulling and moving the second pulley. A bidirectional open / close curtain having the pulley structure according to claim 1. The second winding wheel has one end connected to the second drive gear,
The second prestressing device includes two second winding drums and a second spiral spring,
The second winding drum has one end connected to the second driven gear, and the second driven gear meshes with the second drive gear,
Both ends of the second spiral spring are fixed to the two second winding drums, respectively, and the second spiral spring is configured so that one of the two spiral springs changes as the rotation direction of the two second winding drums is switched. The bidirectional open / close curtain having a pulley structure according to claim 6, wherein the curtain is wound around a second winding drum.   The second winding wheel has a conical shape and has a wide upper part and a narrow lower part, and is connected upright to the second transverse beam so as to be rotatable by a shaft. Bi-directional opening and closing curtain with a pulley structure. The second lifting mechanism includes a second steering wheel and a second branch shaft,
The second steering wheel is fixed to the second transverse beam, and is in contact with the second tension string,
The second branch shaft is installed on the second pulley,
The bidirectional opening / closing curtain having a pulley structure according to claim 1, wherein the second pull string passes through the second steering wheel and the second branch shaft. The fixed object is an upper transverse beam above the first transverse beam,
2. The bidirectional open / close curtain having a pulley structure according to claim 1, wherein the other blind body has one end connected to the upper horizontal beam and the other end connected to the first horizontal beam.   The second pull string coming out of the second transverse beam first penetrates the first transverse beam and abuts against one ring body in the first transverse beam before being fixed to the fixed object, or The bi-directional opening / closing type having a pulley structure according to claim 1, wherein the two-way opening / closing type has a pulley structure according to claim 1, wherein the two-way opening / closing type is wound around a single ring body, extended together with a pull string penetrated by the first transverse beam, and fixed to the fixed object. curtain.

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